Re: SCTP abort with T-bit set after handshake

[Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>]

On Mon, Mar 19, 2018 at 05:28:13PM -0300, Marcelo Ricardo Leitner wrote:
> On Mon, Mar 19, 2018 at 03:38:00PM -0300, Marcelo Ricardo Leitner wrote:
> > > > Or if you can create a
> > > > small reproducer, that would be great.
> > > 
> > > This would be great if I could figure out what the important elements are in what I am doing.
> > > The tests are opening and closing and aborting large numbers of connections. 
> > > Some of the connections are used to exchange a lot of data, others hardly carry anything.
> > > The connection that fails appears to be fairly random. The timing of when it fails appears to be fairly random.
> > > The failure only occurs after an average of over an hour of running.
> > > Any hints at the kind of behaviour that could trigger a failure like this?
> > 
> > I noticed that the association you referenced used the same port at
> > both hosts. You don't have a port re-use happening in there, do you?
> 
> If you have several associations using the same (src ip, dst ip, dst
> port) tuple, you may be facing an issue with rhlists.
> (netdev patchset Subject rhashtable: Fix rhltable duplicates insertion)

https://www.mail-archive.com/netdev@vger.kernel.org/msg220650.html

> 
> We use rhltable for the transport list and their description of the
> issue matches your situation too AFAICT.
> 
>   M.
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